Communication and Perception
Seastars lack a brain and also do not possess well-defined sensory network. However, they are sensitive to touch, light, the water that surrounds them, and orientation. The pedicellariae of the sea star aid in touch sensation as they function to free the organism of any sediments. The tube feet function as chemoreceptors and are used by the sea star to locate food.
Communication Channels: tactile ; chemical
Perception Channels: tactile ; chemical
- 2009. "Blue Starfish" (On-line). Accessed November 14, 2010 at http://www.waza.org/en/zoo/choose-a-species/invertebrates/star-fishes-sea-urchins-and-relatives-echinodermata/linckia-laevigata.
- Deep Sea Waters, 2011. "Blue Sea Star" (On-line). Accessed August 01, 2011 at http://www.deepseawaters.com/deep_sea_blue-sea-star.htm.